白云石

Commonly the dolomite crytals form a framework with evenly distributed porosity.

通常白云石晶体构成格架，它有均匀分布的孔隙。

Dolomites usually have higher rhombic carbonate / CaO ratio.

白云石通常具有较高的斜方晶碳酸盐/CaO比例。

Locally dolomite and anhydrite are important as cements.

局部地方白云石和硬石膏也是重要的胶结物。

Many carbonate masses older than Middle Palaeozoic are of dolomite rather than calcite.

中古生代以前的许多碳酸盐类矿物是白云石而不是方解石。

Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.

在局部地方白云石和硬石膏也是重要的胶结物；还有少量自生石英。